Install Instructions

Installation & Operation Manual
70
Oiled bearing circulators
1. The circulator shipped with the Armor wall mount water
heater is water-lubricated. No oiling is required.
2. Check other circulators in the system. Oil any circulators
requiring oil, following circulator manufacturer’s
instructions. Over-oiling will damage the circulator.
Check Delta T
1. Check Delta T. Reference Section 6 - System Piping on
page 38 for more information regarding Delta T.
The water heater contains ceramic fiber
materials. Use care when handling these
materials per instructions in the Service
Manual. Failure to comply could result in
severe personal injury.
⚠WARNING
5. Remove the condensate hose from the heat exchanger
end. Connect a field supplied 3/4" diameter hose to
a drain pan. Using field supplied means, cover the
refractory in the back of the combustion chamber of the
heat exchanger.
6. Use a vacuum cleaner to remove any accumulation on the
water heater heating surfaces. Do not use any solvent.
7. Brush the heat exchanger while dry using a nylon bristle
brush. Caution: DO NOT use a metal brush. Re-vacuum
the heat exchanger.
8. Finish cleaning using a clean cloth dampened with warm
water. Rinse out debris with a low pressure water supply.
9. Allow the heat exchanger to thoroughly dry.
10. Remove the field supplied rear refractory cover from the
back of the combustion chamber of the heat exchanger
and reassemble.
11. Close isolation valves on piping to isolate water heater
from system. Attach a hose to the water heater drain and
flush water heater thoroughly with clean water by using
purging valves to allow water to flow through the water
make-up line to the water heater.
12. Perform start-up and check-out procedures in the Check
Flame and Combustion - Section 10 - Startup on pages 54
and 56 of this manual.
13. Replace the access cover and restore water heater to
operation.
Table 12B Heat Exchanger Cleaning Kits
Model
Kit
Number
Part
Number
Component
Description
125 - 200 100157627
100208804 Rear Refractory Cover
100208309* Nylon 4" Wheel Brush*
100162566 3mm Allen Wrench
100208311
1/4" x 24" Drill
Extension
* Do NOT use a metal brush. Only use
the kit provided brush or an equivalent
replacement nylon brush.
⚠ CAUTION
12 Maintenance
Rope gasket is intended for sealing
combustion (see FIG. 12-3). If gasket
is damaged DO NOT reuse, the heat
exchanger door must be replaced. Consult
factory for replacement heat exchanger
door (kit 100173749).
NOTICE
ROPE GASKET
CAUTION: IF GASKET IS DAMAGED
DO NOT REUSE, THE HEAT EXCHANGER DOOR
MUST BE REPLACED.
Figure 12-3 Rope Gasket - Heat Exchanger Door